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Quickly and easily install a 4-way trailer connector on your vehicle with this custom harness. Connectors plug directly into existing wiring. Powered converter reduces strain on wiring system and is made using SMT to ensure superior performance.
Features:
Specs:
Installation
This custom-fit T-connector plugs into your vehicle's wiring harness. The connection point for the 4-way tow harness is located behind the interior trim panel in your rear cargo area. Once you've plugged in the converter, insert the included 10-amp fuse into the integrated fuse holder.
Once installation is complete, the 4-way connector will be stowed in an out-of-the-way location within your cargo area.
It is recommended that you use a small amount of grease on all electrical connections - the plugs on your automobile and the 4-pole connector itself - to help prevent corrosion.
Customer Satisfaction Score:
94% were satisfied with this product
6% of customers were not satisfied
Ratings & Reviews
Great plug and play
etrailer makes the install flawless because of support before and after the sale. The videos that cover the install made it so easy. Previously I purchased the Curt III hitch and the video was perfect.
Great company and very competitive pricing
Tip I put the wiring harness in 1/2” tubing along the route to protect from any chafing and used tie wrap to secure. I used JB Weld yo epoxy the bracket to hitch as there were no holes to secure bracket. Solid.
I was very happy with the person who answered the phone. They were very knowledgeable. They knew what they were talking about. I got my product and it went in as easy on the installation as they said it was going to good job thank you.
Installed on a 2020 Sante Fe SEL in my garage, did not lift the vehicle, so a little tight. I also wired for trailer lights and that too was simple. Looks good, should work perfectly. Will be using to pull utility trailer, bike rack, and carrier. Harness was easy to install, used zip ties to secure to vehicle. Completely out of sight.
I'm sure glad I bought the wireing harness along with the trailer hitch. It fit perfectly and made the hook-up a lot easier. A year later now, lots of use, and it still works perfectly.
I was able on Hyundai site to find out that all 2021-2023 Santa Fe vehicles have the trailer tow package. If in doubt just check your engine fuse panel as there is a 30 amp trailer fuse installed. On my PHEV my son was able to reach into the panel and plug the etrailer wire loom into the towing OEM connection. Installed the wire loom in 15 minutes. Was easier than the etrailer video showed.
The Curt T connector wiring harness is performing well. It's easy to install and is a good product.
Perfect fit and great instructions
Perfect fit!
Took me longer to find my tools than to plug this in. Works perfectly, delivered on time in good condition.
Excellent service as always, will be back again!
This wiring was ridiculously easy to install. Etrailer videos always helpful. I have purchased 2 hitches and wiring harnesses from etrailer and have always been 100% happy!
Plug and play wiring harness.
Click the connector and ready to use. Just route the cable, tie, and use!
Perfect fit, easy installation.
This harness is not compatible with the 2025 Hyundai Santa Fe although it is recommended when purchasing a hitch. I didn’t realize it until after I checked out, tried to cancel the order but it was already processed. Was able to return but had to pay for return shipping. Partially my fault for not verifying compatibility, partially e-trailer’s fault for recommending on check out. Had to buy the OEM harness which you have to get from Hyundai directly.
Mike L.
9/30/2025
We show the # CU94FR as a fit up until the 2024 model year. For a 2025, you'll want to use the # C48RV which will be available very soon....
It was easy to install. I bought one three years ago and a problem with the brake lights developed. I'm hoping these work better. But I really do like them. The price was good.
It was a plug and play.
Brooke M.
6/23/2025
Yay! Glad to hear that, Angel -- thanks for sharing the photo :) Where you headed now that you're hitched and wired up?
I used this harness to adapt the existing trailer wiring on my 2023 Hyundai Tucson Hybrid Limited to my trailer. The Tucson Limited has the tow package, which provides the manufacturer's wiring harness routed to the rear underside of the vehicle. I simply plugged this T-Connector in to the existing Tucson harness, then routed/fastened the connector near the trailer hitch. It worked perfectly and was very easy to install in a few minutes. I could have installed in less than 5 minutes, but I tried several different routing methods to make it the neatest possible installation. THIS is how all aftermarket equipment should work!
Craig
8/25/2025
Still happy with this harness and have not had any issues works great.
This was brilliant and incredibly easy to install! Can’t beat plug-and-play.
Easiest trailer light connector I have ever installed!! It was a perfect fit and clear instructions!
Good price,fast shipping. Excellent videos on installation.
Richard
3/8/2026
Still working perfectly.
I was able to replace an aged five-pin connector on a boat trailer I just purchased with this harness. It was quick and easy and a solid value priced product. Super happy with my purchase!
Very easy installation and contained all necessary parts including zip ties. Fast shipping. I really appreciate the wire protection tubing and built in fuse. High quality product.
Price was good, easy to order and came in quicker than projected. I had some difficulty finding proper place for mounting of the black circuit box. The directions said it needed to be installed inside the vehicle. That would require drilling a hole big enough to pass the wiring harness connector through. Sorry, but not putting a 2 inch hole in the bottom of my car for water or other invasive bugs to make a home in.
bought the wiring harness for my daughters Santa Cruz. I installed it myself along with the hitch very easy to do. Still no problems at all after more than a year. Thanks etrailer
Install was straight forward. Took me a little over 1 hour to install the hitch and wiring harness. Price was great. The dealer wanted 1100 dollars.etrailer was 300 dollars.
Johnny
6/4/2025
Hitch is working as designed. No problems at all.
Info for this part was:
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James
7/30/2025
Perfect!